(Closed) Sign for Favors: Is it really necessary?

Our favor is raspberry hard cider and sparkling non-alcoholic cider (for people who are under aged and/or don’t drink). We put the bottles in organza bags and attached a small thank you tag. The bag is very sheer and you can easily see the bottle through the bag.

I was wondering if I should put out a sign out distinguishing the alcoholic version from the non-alcoholic version, but I don’t know if it is necessary. What do you guys think?